American Academy of Family Physicians http://www.aafp.org

Active Aging Partnership http://www.agingblueprint.org

American College of Sports Medicine http://www.acsm.org

American Geriatrics Society http://www.americangeriatrics.org

American Physical Therapy Association http://www.apta.org

The National Center on Physical Activity and Disability http://www.ncpad.org

The The President's Challenge http://www.presidentschallenge.org

Thera-Band http://www.thera-band.com